noun
- aquatic animals with stinging cells, including jellyfish, corals, and sea anemones
Usage: biology; plural form
Examples
- Cnidarians are found in both freshwater and marine environments.
- The coral reef is home to thousands of cnidarians.
- Jellyfish are among the most recognizable cnidarians.
- Scientists study cnidarians to understand their unique stinging mechanisms.
- Sea anemones are cnidarians that attach themselves to rocks.
- Many cnidarians have radial symmetry in their body structure.